Hard to believe but Google News IS BETA now for popular news sources, the "source:" will be automatically added to the query after a keyword for example will become whether you like it or not http://news.google.com/news?hl=en&ned=us&q=google+forbes&btnG=Search+News
Is it a big deal that google add 'google source:forbes'? I am sorry but I didn't understand the implications.
Well, if yuo now want to find cnn's editorial contact pages and search: editor contact cnn - it will convert it to editor contact source:cnn and yuo probably won't be able to find it because G will look in it's news index. I guess that could be the downside.